Loader for vehicles



Oct. 6, 1936. w. VENEMA I LOADER lFOR VEHICLES Filed March 24, 1934* 2 sheets-sheet 1 Ilill l I. .Il

Octe 6, 1936. w. VENEMA LOADER FOR VEHICLES Filed March 24, i954 2 Sheets-Sheet 2' QN NN Qm,

Patented Oct. 6, 1936 UNITED S'IMEsv PATENT OFFICE 2,056,495 LOADER. FOR VEHICLES l William Venema, Cicero, lll. Applicationivrarch 24, 1934, serial No. '217,140 3 claims. (c1. 214-57) This invention relates generally to loaders and has particular reference toV loaders for dump trucks and other vehicles with which it may be combined for loading various materials thereon.

5 One ofthe objects of my invention is to provide a .pair of arms pivotally mounted on the vehicle and operated by a power-driven mecha'- nism whereby a load may be lifted from' the ground onwhich the vehicle stands to a point above the vehicle for deposit therein.

Another object of my invention resides in the provision of a bucket or container mounted on the free ends of said arms Afor loading granular material such as stone, ashes, sand and' other 15.; material from or near the ground ontoa vehicle or for discharge into a vehicle body of a dump truck.y

Still another object of my invention is found in the provision of novel means for discharging the load from the bucket into the vehicle body. A further object of the invention is to provide a novel. power-driven mechanism for actuating the bucket supportingarms consisting of a reversible winch and flexible connections between said winch and said arms.

With the above and other objects in view, my

invention consists in the novel combination andy construction of the parts and membersshown in preferred embodimentin the attached drawings, 30, described in the following specifications and particularly pointed out in the appended claims.

Referring to the drawings in which like referencev numerals indicate like or corresponding partsz- Y, Fig. l is a side elevation vof dump truck embodying a preferred form of .my invention.

Fig. 2 is a bottom view of the vdump truck showf.

ing the winch and flexible bucket arm` operating cables.

49 Fig. 3 is an end view of the bucket looking toward the end ofI the truck withparts shown in section. Y

Fig. 4 is a cross section taken on line 4-4 of Fig. l showing the cover vfor the truck body inlet Fig. 5. is an. enlarged cross section taken on line 545 of Fig'.' 1r showing a stabilizing device for retaining the bucket in vertical position during loading.

50 Referring now to the illustrations, the dump truck generally indicated by numeral Ill includes a frame IIIA, tiltable body or container IDB, is a winch II which may be driven in any suitable manner from the truck engine or mechanism which is employed to tilt the truck body It)B through a. suitable Aclutch mechanism controlled by an Operating lever I2. y

'I'he winch II is provided With a shaftellA on the ends of which are mounted the spools or winch heads IIB. A pair of bent swingable arms I3 is pivotally mounted at I3A and preferably to the sides of the body IGB. The free ends ofthe arms I3 are cross-connected with a yoke vor member I3B of U-shape form which extends in spaced distance 101 across the top of the bucket VUI to permit easy. access to, and loading of, the bucket.

The free ends of the arms I3 are also provided with inwardly disposed brackets I3 which support spindles I3C for pivotally supporting the 1'5' loading bucket I4. w

The preferable form of loading bucket here shown consists of ends I IIA, a bottom plate 14B, and side plates I 4Q and I 4D.' To facilitate the loading of the bucket the upper half of the side 20. plate IllD is hingedly mounted onhinges HIE as clearly shown in Figs. 1,2, and 3.

The bucket I4 is provided with spindles I 3C fixed to its ends I llA which `spindles I3C are loosely mounted, as pivots,v in the ends', of the armsy 25 brackets I3D which are xed to the free ends of the arms I3.

` Thefbrackets I3D are each provided with a pair of spaced supportsISE for the pins lliA which. form pivotal supportsifor the T-shaped bucket 391 retaining members I5. The bucket ends IllA are recessed inthe top edges of the ends [4A to receive the members I5..to thus retain the bucket [4 `in vertical position during its loading as shown in Figs. 1, 3, and 5.` The retaining members I5 35 are arranged to bel moved upwardly out of the recesses after the loading of the bucket to permit its tilting when in proper discharge position.

The'truck body or container: IIlBvis provided 4 0 witha discharge gate IUD and a pair of inlet gates IEE which open upwardly and cooperate with a hinged end plate IBF to form upstandingr guard plates for the inlet opening of the container IDB toA prevent'any spill from the bucket I4 'when it 45 is'raised to discharge'position over thellbody as shown in dotted lines of Fig. 1. Since the bucket is tiltable, an adjustable chain I6 attached thereto at one end and hooked at its other end into the ear I'I causes the bucket to tilt into proper dis- 50 charge position.

The raised position of the bucket when the truck is in transit, is shown in Fig. l, by dotted lines in the extreme left hand position.

In Fig. 2, I show the winch Il and the flexi- 55 ble cables or connections to the bucket-operating arms I3.

The arms I3 are connected together with a yoke or cross-bar |33 to which are connected the ends I8A and IBB of the pair of cables I8 operatively mounted on each side of the truck. body as shown in Figs. l, 2, 3, and 4. These cables may be traced from the connection IBA as passing under the corner sheave I9 thence over sheave 20, thence around tightener sheave 2|, then over sheave 22 to the winch head I|B about which the cable is wrapped two or three turns and is then secured thereto.

Tracing the cable I8 from connection I 8B the same passes over the body sheaves 23, 24, 25, 26, and 21 and around the sheave 28 and around tightener sheave 29 and thence around sheave 30 and then to the inside winch head IIB for connection thereto.

Tol keep the cables taut, the sheaves 2| and 29 are each secured to one end of a rod 3| which rods are slidable in casings 32 and provided with heads 33 between which and the casing ends are coil springs 34 which tend to pull sheaves 2| and 29 to thereby keep the operating cables I8 taut.

It will also be observed from Fig. 2, that the sheaves 20, 22, 28, and 30 are all mounted on a common shaft 35 which shaft forms the pivotal point for the tiltable truck body IDB.

The arrangement is such that during all tilting positions of the truck body, the ilexible operating cables I8 will be maintained taut by means of the springs 34.

The winch shaft I IA is provided with any suitable reversibly driven mechanism which is controlled in any suitable manner from the operators cab IUC as for instance by a lever I2.

From the above description and attached drawings, it will readily be understood that the reversibly-driven winch heads IIB control, through the flexible cables I 8, the swinging movements of the pivotally mounted arms I3 in such manner that the bucket I4 may be raised from the loading position as shown by the full lines in Fig. 1, to that of the dumpingposition as shown by the dotted lines and then discharged of its contents into the truck body. The operation of the lever I2 controls all positions of the bucket I4 from loading position over the truck body or to the position of the bucket I4 over the cab I UC while the truck is in transit.

It is apparent that when the bucket I4 is movable into its position over the cab |00, the dump ing chain I6 must be disconnected from the ear I'I and dropped into the bucket.

The body I0B may. also be provided with brackets 36 iixed to its sides which support the arms I3 in their extreme loading and transit positions.

While I have herein disclosed my invention in a preferred embodiment, I do not Wish to be understood as limiting myself thereto as the con. struction details and arrangement shown in the drawings may be modified without departing from the spirit of the invention embodied in the appended claims. 4

I claim:

1. Loading apparatus for vehicles having a pivotally supported container body, said apparatus including a pair of arms pivotally supported at one end on the sides of said container body, an inwardly disposed bracket on the free end of each of said arms, a bucket pivot pin carried by each oi' said brackets, a bucket pivotally supported on said bucket pivot pins, a latch pivotally mounted on one of said brackets and adapted to engage the bucket to retain the bucket in proper loading position, said latch being movable into position to release the bucket before its movement to discharging position, a single pivot shaft for said container body mounted on the frame of the vehicle, a plurality of cable guide sheaves mounted on said container body pivot shaft, a

reversible winch mechanism having a plurality of winch drums, cable guide sheaves on the sides of said container body, flexible cables trained over said guide sheaves on said container body and on said container body pivot shaft and forming operating means connecting said winch drums with said bucket-supporting arms, and resilient means for maintaining said flexible cables taut during all positions of said bucket and said container body.

2. Loading apparatus for vehicles having a tiltable container body, said apparatus including a pair of bars constituting arms pivotally mounted at one end to the sides of said body, each of said arms having an angularly disposed extension at the opposite end thereof, a loading bucket pivotally mounted on said extensions, power-driven operating means including ilexible cables and Winch mechanism for swinging said arms and bucket from a lower position to a higher position over the top of said body, guid ing sheaves for said cables mounted on the sides of and underneath said body, resilient means for maintaining said cables taut during all positions of said bucket and said tiltable body, and means for discharging said bucket into said body, said.

power-driven operating means being continuously operatively connected with power transmitting means during all positions of the tiltablebody.

3. Loading apparatus for vehicles having a tiltable container body, said apparatus including a pair of bars constituting arms pivotally mounted at one end to the sides of said body, a loading bucket pivotally mounted on said arms, power-driven operating means including flexible cables and winch mechanism for swinging said arms and bucket from a lower position to a higher position over the top of said body, guiding sheaves for said cables mounted on the sides of and underneath said body, resilient means for maintaining said cables taut during all positions of said bucket and said tiltable body, and means for discharging said bucket into said body, said power-driven operating means being continuously operatively connected with power transmitting means during all positions of the tiltable body.

WILLIAM VENEMA. 

